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Issue 722196 link

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Issue metadata

Status: Duplicate
Owner:
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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56.2% improvement in page_cycler_v2.top_10_mobile at 470457:470497

Project Member Reported by yhirano@chromium.org, May 15 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=722196

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgyqqxgQkM


Bot(s) for this bug's original alert(s):

android-webview-nexus6
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, May 15 2017

Mergedinto: 721238
Status: Duplicate (was: Assigned)

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : yhirano
  Commit : 91088a195969f5af61f404c9f02edc622cbe373a
  Date   : Wed May 10 05:49:31 2017
  Subject: Add Field Trial Testing Configuration for MojoLoading

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : page_cycler_v2.top_10_mobile
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___www.baidu.com_s?word_google
  Change       : 53.17% | 331.687666667 -> 155.3325

Revision             Result                  N
chromium@470456      331.688 +- 22.41        6      good
chromium@470477      350.669 +- 25.6564      6      good
chromium@470487      342.236 +- 35.8176      6      good
chromium@470489      341.196 +- 35.4801      6      good
chromium@470490      158.496 +- 21.6233      6      bad       <--
chromium@470492      180.694 +- 139.891      6      bad
chromium@470497      155.333 +- 14.5857      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.baidu.com.s.word.google page_cycler_v2.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979553812156832944

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4961184861650944


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, May 15 2017


=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : yhirano
  Commit : 91088a195969f5af61f404c9f02edc622cbe373a
  Date   : Wed May 10 05:49:31 2017
  Subject: Add Field Trial Testing Configuration for MojoLoading

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : page_cycler_v2.top_10_mobile
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___www.baidu.com_s?word_google
  Change       : 55.64% | 342.069333333 -> 151.7555

Revision             Result                  N
chromium@470456      342.069 +- 18.1368      6      good
chromium@470477      335.917 +- 8.28504      6      good
chromium@470487      334.236 +- 24.3649      6      good
chromium@470489      337.422 +- 25.0698      6      good
chromium@470490      151.441 +- 14.6203      6      bad       <--
chromium@470492      156.432 +- 18.0846      6      bad
chromium@470497      151.755 +- 7.32092      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.baidu.com.s.word.google page_cycler_v2.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979553800017534400

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4690522196672512


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

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